Cheap Flights from Los Angeles to St. Louis from $86

Frequently Asked Questions

• What are the cheapest flights from Los Angeles to St. Louis (LAX-STL)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as $86 on Cheapest nonstop routes (e.g. LAX to STL on Thu, Sep 10), while Frontier Airlines offers Cheapest nonstop round-trips from $206 departing on Thu, Oct 8 and returning on Mon, Oct 12.

• Which airlines offer flights from Los Angeles to St. Louis?

  At the moment, several airlines serve connecting flights from Los Angeles to St. Louis, including: Frontier Airlines United Airlines Alaska Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• How long does it take to fly from Los Angeles (LAX) to St. Louis (STL) and what is the distance?

  It takes around 3 hours 38 minutes to fly from Los Angeles (LAX) to St. Louis (STL).

• When is the best time to book flights from Los Angeles to St. Louis?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Los Angeles to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Los Angeles to St. Louis?

  Based on Trip.com data in the past 4 weeks, there is 19 flight per week flying from Los Angeles to St. Louis. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS4057 (17:23)

• How can I find the best deals on flights from Los Angeles to St. Louis?

  To find best deals on flights from Los Angeles to St. Louis, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Sep 10, with one-way flights priced at just $86.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Los Angeles (LAX) to St. Louis (STL) the cheapest?

  The cheapest months to fly from Los Angeles to St. Louis is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Los Angeles to St. Louis on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Los Angeles to St. Louis on August 25, 2026 with Frontier Airlines, with prices starting at $217.

• Which airports can I fly to for St. Louis from Los Angeles?

  You can land at any one of the following hubs in St. Louis, with Los Angeles International Airport to St. Louis Lambert International Airport (LAX-STL) is by far the most common option on this route: St. Louis Lambert International Airport (STL) St. Louis Downtown Airport (CPS).

• Is there any time difference between Los Angeles and St. Louis?

  The time difference between St. Louis and Los Angeles is 2h.

• How do I change or cancel my ticket from Los Angeles to St. Louis?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Los Angeles to St. Louis?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Los Angeles to St. Louis is $239. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Los Angeles to St. Louis?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Los Angeles to St. Louis is $419. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Los Angeles to St. Louis on Trip.com?

  Enter Los Angeles and St. Louis, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Los Angeles to St. Louis route?

  Frontier Airlinesare the most popular budget airlines flying from Los Angeles to St. Louis. Check baggage, seat and payment fees before comparing the final price.